[PATCH] USB: ftdi_sio redundant macro removal

[ftdi_sio] Replaced redundant INTERFACE_A and INTERFACE_B macros with
the equivalent PIT_SIOA and PIT_SIOB macros.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/ftdi_sio.c

@@ -1483,10 +1483,10 @@ static int ftdi_FT2232C_startup (struct usb_serial *serial)
 	inter = serial->interface->altsetting->desc.bInterfaceNumber;
 
 	if (inter) {
-		priv->interface = INTERFACE_B;
+		priv->interface = PIT_SIOB;
 	}
 	else  {
-		priv->interface = INTERFACE_A;
+		priv->interface = PIT_SIOA;
 	}
 	priv->baud_base = 48000000 / 2; /* Would be / 16, but FT2232C supports multiple of 0.125 divisor fractions! */
 	

drivers/usb/serial/ftdi_sio.h

@@ -279,10 +279,6 @@
 #define FTDI_SIO_SET_LATENCY_TIMER	9 /* Set the latency timer */
 #define FTDI_SIO_GET_LATENCY_TIMER	10 /* Get the latency timer */
 
-/* Port interface code for FT2232C */
-#define INTERFACE_A		1
-#define INTERFACE_B		2
-
 
 /*
  *   BmRequestType:  1100 0000b